VQ Hiss or other rattle?

Averying

Hey all,
My question for those with noticeable VQ hiss… is the VQ hiss a constant hiss on decel or a “burst” of noise. My car would rattle for 30 seconds straight if I was on decel down a long hill

https://imgur.com/gallery/SWHPvrY

I’ve had a rattle noise on deceleration at low RPM since I bought my Z a few years ago. Haven’t managed to track down the culprit and I never thought it was VQ hiss. It’s less of an airy hiss, more of a metallic rattle. It’s tough to capture on video with the noise of the bypass valve. You can hear it at the halfway mark and again towards the end of the video.

My exhaust setup: stock headers, non-res TPs, Invidia Gemini with 2 extra Vibrant resonators clamped in… this setup should be pretty “mild” with minimal rasp/hiss since the Gemini is quiet AND I’ve added extra resonators. That’s why I’m thinking this isn’t VQ hiss and is a different rattle.


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2009 Sport Touring | Platinum Graphite | GTM Stage 1 Supercharger | BC BR Coilovers | Hotchkis Swaybar | Z1 FUCAs | AME TM-02 Wheels | Z1 2-piece Front Rotors | Z1 Clutch & Flywheel | Invidia Gemini Catback | GTM Resonated Test Pipes